USymbolFolder.java
/* ========================================================================
* PlantUML : a free UML diagram generator
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* (C) Copyright 2009-2024, Arnaud Roques
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* Original Author: Arnaud Roques
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package net.sourceforge.plantuml.decoration.symbol;
import java.util.Objects;
import net.sourceforge.plantuml.klimt.Fashion;
import net.sourceforge.plantuml.klimt.Shadowable;
import net.sourceforge.plantuml.klimt.UPath;
import net.sourceforge.plantuml.klimt.UTranslate;
import net.sourceforge.plantuml.klimt.drawing.UGraphic;
import net.sourceforge.plantuml.klimt.drawing.UGraphicStencil;
import net.sourceforge.plantuml.klimt.font.StringBounder;
import net.sourceforge.plantuml.klimt.geom.HorizontalAlignment;
import net.sourceforge.plantuml.klimt.geom.MagneticBorder;
import net.sourceforge.plantuml.klimt.geom.XDimension2D;
import net.sourceforge.plantuml.klimt.geom.XPoint2D;
import net.sourceforge.plantuml.klimt.shape.AbstractTextBlock;
import net.sourceforge.plantuml.klimt.shape.TextBlock;
import net.sourceforge.plantuml.klimt.shape.TextBlockUtils;
import net.sourceforge.plantuml.klimt.shape.ULine;
import net.sourceforge.plantuml.klimt.shape.UPolygon;
import net.sourceforge.plantuml.style.SName;
public class USymbolFolder extends USymbol {
private final static int marginTitleX1 = 3;
private final static int marginTitleX2 = 3;
private final static int marginTitleX3 = 7;
private final static int marginTitleY0 = 0;
private final static int marginTitleY1 = 3;
private final static int marginTitleY2 = 3;
private final SName sname;
private final boolean showTitle;
public USymbolFolder(SName sname, boolean showTitle) {
this.showTitle = showTitle;
this.sname = sname;
}
@Override
public String toString() {
return super.toString() + " " + showTitle;
}
@Override
public SName[] getSNames() {
return new SName[] { sname };
}
private void drawFolder(UGraphic ug, double width, double height, XDimension2D dimName, double shadowing,
double roundCorner) {
final double wtitle = getWTitle(width, dimName);
final double htitle = getHTitle(dimName);
final Shadowable shape;
if (roundCorner == 0) {
final UPolygon poly = new UPolygon();
poly.addPoint(0, 0);
poly.addPoint(wtitle, 0);
poly.addPoint(wtitle + marginTitleX3, htitle);
poly.addPoint(width, htitle);
poly.addPoint(width, height);
poly.addPoint(0, height);
poly.addPoint(0, 0);
shape = poly;
} else {
final UPath path = UPath.none();
path.moveTo(roundCorner / 2, 0);
path.lineTo(wtitle - roundCorner / 2, 0);
// path.lineTo(wtitle, roundCorner / 2);
path.arcTo(new XPoint2D(wtitle, roundCorner / 2), roundCorner / 2 * 1.5, 0, 1);
path.lineTo(wtitle + marginTitleX3, htitle);
path.lineTo(width - roundCorner / 2, htitle);
path.arcTo(new XPoint2D(width, htitle + roundCorner / 2), roundCorner / 2, 0, 1);
path.lineTo(width, height - roundCorner / 2);
path.arcTo(new XPoint2D(width - roundCorner / 2, height), roundCorner / 2, 0, 1);
path.lineTo(roundCorner / 2, height);
path.arcTo(new XPoint2D(0, height - roundCorner / 2), roundCorner / 2, 0, 1);
path.lineTo(0, roundCorner / 2);
path.arcTo(new XPoint2D(roundCorner / 2, 0), roundCorner / 2, 0, 1);
path.closePath();
shape = path;
}
shape.setDeltaShadow(shadowing);
ug.draw(shape);
ug.apply(UTranslate.dy(htitle)).draw(ULine.hline(wtitle + marginTitleX3));
}
private double getWTitle(double width, XDimension2D dimTitle) {
final double wtitle;
if (dimTitle.getWidth() == 0)
wtitle = Math.max(30, width / 4);
else
wtitle = dimTitle.getWidth() + marginTitleX1 + marginTitleX2;
return wtitle;
}
private double getHTitle(XDimension2D dimTitle) {
final double htitle;
if (dimTitle.getWidth() == 0)
htitle = 10;
else
htitle = dimTitle.getHeight() + marginTitleY1 + marginTitleY2;
return htitle;
}
private Margin getMargin() {
return new Margin(10, 10 + 10, 10 + 3, 10);
}
@Override
public TextBlock asSmall(final TextBlock title, final TextBlock label, final TextBlock stereotype,
final Fashion symbolContext, final HorizontalAlignment stereoAlignment) {
Objects.requireNonNull(title);
return new AbstractTextBlock() {
public void drawU(UGraphic ug) {
final XDimension2D dim = calculateDimension(ug.getStringBounder());
ug = UGraphicStencil.create(ug, dim);
ug = symbolContext.apply(ug);
final XDimension2D dimTitle = getDimTitle(ug.getStringBounder());
drawFolder(ug, dim.getWidth(), dim.getHeight(), dimTitle, symbolContext.getDeltaShadow(),
symbolContext.getRoundCorner());
final Margin margin = getMargin();
final TextBlock tb = TextBlockUtils.mergeTB(stereotype, label, HorizontalAlignment.CENTER);
if (showTitle)
title.drawU(ug.apply(new UTranslate(4, 3)));
tb.drawU(ug.apply(new UTranslate(margin.getX1(), margin.getY1() + dimTitle.getHeight())));
}
private XDimension2D getDimTitle(StringBounder stringBounder) {
return showTitle ? title.calculateDimension(stringBounder) : new XDimension2D(40, 15);
}
public XDimension2D calculateDimension(StringBounder stringBounder) {
final XDimension2D dimName = getDimTitle(stringBounder);
final XDimension2D dimLabel = label.calculateDimension(stringBounder);
final XDimension2D dimStereo = stereotype.calculateDimension(stringBounder);
return getMargin().addDimension(dimName.mergeTB(dimStereo, dimLabel));
}
@Override
public MagneticBorder getMagneticBorder() {
return new MagneticBorder() {
@Override
public UTranslate getForceAt(StringBounder stringBounder, XPoint2D position) {
final XDimension2D dim = calculateDimension(stringBounder);
final XDimension2D dimTitle = getDimTitle(stringBounder);
final double wtitle = getWTitle(dim.getWidth(), dimTitle);
final double htitle = getHTitle(dimTitle);
if (position.getX() >= wtitle && position.getY() >= 0 && position.getY() <= htitle)
return new UTranslate(0, htitle);
if (position.getY() <= 0 && position.getX() >= wtitle + marginTitleX3)
return new UTranslate(0, htitle);
if (position.getY() <= 0 && position.getX() >= wtitle - marginTitleX3) {
final double delta = position.getX() - (wtitle - marginTitleX3);
final double how = delta / (2 * marginTitleX3);
return new UTranslate(0, htitle * how);
}
return UTranslate.none();
}
};
}
};
}
@Override
public TextBlock asBig(final TextBlock title, HorizontalAlignment labelAlignment, final TextBlock stereotype,
final double width, final double height, final Fashion symbolContext,
final HorizontalAlignment stereoAlignment) {
return new AbstractTextBlock() {
public void drawU(UGraphic ug) {
final StringBounder stringBounder = ug.getStringBounder();
final XDimension2D dim = calculateDimension(stringBounder);
ug = symbolContext.apply(ug);
final XDimension2D dimTitle = title.calculateDimension(stringBounder);
drawFolder(ug, dim.getWidth(), dim.getHeight(), dimTitle, symbolContext.getDeltaShadow(),
symbolContext.getRoundCorner());
title.drawU(ug.apply(new UTranslate(4, 2)));
final XDimension2D dimStereo = stereotype.calculateDimension(stringBounder);
final double posStereo = (width - dimStereo.getWidth()) / 2;
stereotype.drawU(ug.apply(new UTranslate(4 + posStereo, 2 + getHTitle(dimTitle))));
}
public XDimension2D calculateDimension(StringBounder stringBounder) {
return new XDimension2D(width, height);
}
@Override
public MagneticBorder getMagneticBorder() {
return new MagneticBorder() {
@Override
public UTranslate getForceAt(StringBounder stringBounder, XPoint2D position) {
final XDimension2D dim = calculateDimension(stringBounder);
final XDimension2D dimTitle = title.calculateDimension(stringBounder);
final double wtitle = getWTitle(dim.getWidth(), dimTitle);
final double htitle = getHTitle(dimTitle);
if (position.getX() >= wtitle && position.getY() >= 0 && position.getY() <= htitle)
return new UTranslate(0, htitle);
if (position.getY() <= 0 && position.getX() >= wtitle + marginTitleX3)
return new UTranslate(0, htitle);
if (position.getY() <= 0 && position.getX() >= wtitle - marginTitleX3) {
final double delta = position.getX() - (wtitle - marginTitleX3);
final double how = delta / (2 * marginTitleX3);
return new UTranslate(0, htitle * how);
}
return UTranslate.none();
}
};
}
};
}
}